Abstract: Lung cancer is the most frequently diagnosed cancer and the leading cause of cancer-related death. Molecular targeted therapy for lung cancer, especially non-squamous non-small cell lung cancer, has developed rapidly and achieved good results. Several studies have found that fibroblast growth factor receptor (FGFR) signaling supports cancer cell proliferation and stimulates angiogenesis through different mechanisms, which plays a role in the development and progression of several tumors. This indicates that the inhibitions of FGFR signaling pathway may inhibit the proliferation of cancer cells. Dysregulation of FGFR signaling has been observed in some types of malignancy, including lung squamous cell carcinoma (LUSC), making FGFR a potential therapeutic target for LUSC. This review focuses on the role of FGFR signaling and some FGFR inhibitors in LUSC.

Key words: lung squamous cell carcinoma, fibroblast growth factor receptor, targeted therapies